The AMTG was established in April 2005 and ceased to exist in July 2006 when the Australian force was relocated to Dhi Qar Governorate as Overwatch Battle Group (West).

The initial force operated in Iraq between April and November 2005 and was commanded by the 2nd Cavalry Regiment's headquarters.

The AMTG was highly mechanised and operated 40 Australian Light Armoured Vehicles (ASLAVs) and 10 Bushmasters.

[3] Upon the withdrawal of Japanese reconstruction troops the Australian force was transferred to Tallil Airbase in Dhi Qar Governorate.

The role of the Task Group changed to providing support to Iraqi forces as requested.